<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>v-on指令</title>
</head>
<body>
 <!-- html结构 -->
 <div id="app"> 
    <input type="button" value="v-on指令" v-on:click="doIt">
    <input type="button" value="v-on简写" @click="doIt">
    <input type="button" value="双击事件" @dbclick="doIt">
</div>


<!-- 开发环境版本，包含了有帮助的命令行警告 -->
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>

<script>
    var app=new Vue({
       el:"#app",
       data:{
           food:"西兰花炒蛋"
       },
       methods:{
           doIt:function(){
            alert("做it")
           },
           changFood:function(){
            //    console.log(this.food);
            this.food+="好好吃"
           }
       }
    })
</script>
</body>
</html>
